Define the term variable and provide an example
What will be an ideal response?
Answer: Answers will vary. The variable is a letter that can represent any integer, as in 7z. The z is the variable.
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What is the role of postextubation NPPV for patients with COPD exacerbations who are intubated because they were not initially candidates for NPPV? I. earlier extubation to NPPV II. reduced incidence of nosocomial infection III. decreased length of stay in hospital IV. shortened duration of positive-pressure mechanical ventilation
A. I. only B. II, III only C. I, III, IV only D. I, II, III, IV only
The electrolyte that is most important for maintaining the resting potential of nerve and cardiac muscle cells is:
A. calcium B. sodium C. chloride D. potassium
Most physical changes that occur in the elderly develop rapidly after the age of 65
Indicate whether the statement is true or false
You are testing Rick's sensation/perception. Which of the following tests should be least rele-vant to his disability?
A. Touch and superficial pain B. Position sense and stereognosis C. Body scheme and visual spatial perception D. Thermal and pressure sensitivity